Improvement in reservoir cooking-stoves



LB. CROWLEY & A.- E. CHAMBERLAIN.

RESERVQIR COOKING-STOVE.

Patented FebJZQ, 1876.

N, PEIERS. PHOTO-LITMOGRAPHER. WASHINGTON. I3 C UNITED STATES JOHN B. CROWLEY AND ADDIS E. CHAMBERLAIN, OF CINCINNATI, OHIO,

P TENT came.

ASSIGNORS TO CHAMBERLAIN 8Z7 CO., O,F SAME PLACE.

IMPROVEMENT IN RESERVOIR CO OKl'NG-STOVES.

Specification forming part of Letters Patent No. 174,064, dated February October 15, 1875.

To all whom it may concern Be it known that we, JOHN'B. ORoWLEY and Anms E. CHAMBERLAIN, residents of the city of Cincinnati, in the State of Ohio, have invented certain new and useful Improvements in Stoves, of which the following is a specification.

Our invention consistsin applying a lowdown reservoir to the rear of a cook-stove, in such a manner as to expose a large area of said reservoir 'to the action of the heat, and without, at the same time, unduly increasing either the length, height,or breadth ofthe stove. We accomplish this result by a peculiar arrangement of reservoir, flues, dampers, &c., the location and use of which willbe hereinafter more fully explained.

Figure l is a perspective view of a cook stove provided with our improvements, the front end of the stove being removed, and the dampers being set so as to divert the products of combustion down the diving-fines, and thence around the oven. Fig. 2 is a vertical section of the same at the line 1 1. Fig. 3 is a vertical section at the line 2 2. Fig.4c is another vertical section in the same plane, but showing the dampers in a horizontal position, and both lids of the reservoir opened. Fig. 5 isa transverse section at the line 3 3. Fig. 6 is a perspective view, showing the reservoir detached from the stove. I

A represents the bottom, B B thesides, and O the top plate,of an ordinary cook-stove.

Y D is thetop plate, E the back plate, and F the bottom plate, of an oven, G, which latter is provided with doors 9 g. Castwith or otherwise attached to the top plateC is a rectangular box, H, which projects a suitable distance above said plate, and is furnished with a flange, h, to which latter is hinged,at i, a frame,I, adapted to fit snugly down'upon said flange. Hinged to this frame, at j,'is a lid J, having a handle, j, wherewith it may be conveniently opened as occasion may require. The frame I, together with its accompanying,

. lid J, serves to conceal the reservoirK, whose marginal flange it rests upon the rim h, and

immediately under said -frame, as shown in Figs. 2 and 3. This reservoir is furnished with an annular and horizontal'ledge, L,Which rests 29,1876; application filed upon that portion of the topjplate C which extends inwardly from the box H. The walls of said reservoir are approximately vertical except the front portion below the ledge L,

which portion is concaved,as at Z,,so as to fit as snugly as possible upon the curved extremities m m of two vertical flue-strips, M and M. These strips are located between the back plate E of oven G and the front plate N of hot-closet 0, so as to form two side or diving flues, P P, and an intermediate or ascending flue, Q. q is aplate,which acts as-a barrier to prevent the products of combustion entering the upper end of ascending flue Q. This barrier extends from the top of oven G to the under side of plate C, .and it reaches completely across from one strip, M,to the other strip, M.

The diving-fines P P communicate at the bottom of the stove with their. respective horizontal fluespp, while an appropriate channel, R, is provided to conduct the products of combustion rearwardly to the uptake Q. The front plate N of closet Q is concaved at n, so as to increase the area of the central flue Q. S is the top plate of said hot-closet, and T is the'back plate of the same, which latter constitutes the extreme rear member'of the stove. Located between the sides B B,top plate S,

and end plate T, is a chamber, U, which allows the products of combustion to circulate completely around the ends and back of the res ervoir K, and also under the bottom of the same when the dampers V V are properly set.

These dampers are attached to a common rock-shaft, o, and are located about on a level with the plate S, the object of said dampers being to openor close communication with the upper or receiving ends of diving flur s P P. 'v are stopson theflue-strips M M for the purpose of maintaining the dampers in their proper horizontal position.

Projecting outwardly from the strips M M are wings W W, that assist in supporting-the reservoir K,' and said lateral wings serve as stops to maintain the dampers V V in their open orerect position. Furthermore, these, wings, in connection with vertical flanges b b of side plates B B,'constitute passages X X, which allow the flame and smoke to enter the 2 p i7L064 chamber U and circulate around the reservoir.

thereby forming an outlet from chamber U to neck Y, which latter projects from the extension 0 of top plate (J.

To illustrate the operation of the stove and its accessories, we will suppose that it is desired to arrange the apparatus for baking, to accomplish which result the dampers V V are first turned up vertically, as shown in Fig. 3, thereby effectually closing the openings XX of chamber U. The products of combustion, as they are drawn rearwardly between the plates 0 and D, are arrested by the barrier q, which prevents the flame and smoke descending the central flue Q, and the products of combustion are thus divided into two separate and distinct currents, one of which is deflected to the right and the other to the left of said barrier. The current passing to the right of this plate entersthe side flue P, while the current that proceeds to the left is drawn into the other flue, P. These two currents then descend their respective flues, as previously described, and after traversing the horizontal 4: passages 19 1) they enter the central channel R at or near the front of the stove. The products of combustion then traverse said central channel rearwardly, and ascend theflue Q, and after entering the chamber U they escape through the exit t T, as indicated by arrows in Fig. 2.

'During this circuitous passage of the products of combustion through the stove, the flames first strike that portion of the concaved front Z of thereservoir which is exposed between the plates B B and the flue strips M M, and as soon as the flame and smoke cscape from the uptake Q they pass under the central portion of the bottom of the reservoir K.

It will thus be seen that, even when the stove is employed for baking, a considerable amount of heat is brought to bear against the various surfaces of the reservoir, and the result is that the water contained therein soon becomes hot enough for all culinary purposes; but-when the stove is not to be used for baking purposes, the dampers V V are turned down to the horizontal position shown in F gs. 4' and 5, which act opens the passages X and X, thereby allowing the fire to pass through said passages directly into the chamber U, and thence out at the exit t T. As the areas of the reservoir that are exposed be:

tween the plates B M and B M, are about equal to the surface of the reservoir located between the fiue-strips'M M, it will be understood that said reservoir is nearly equally surrounded with heat, whether the stove is employed for baking or not. It will also be observed that the ledge L rests snugly upon the plate 0, and by this arrangement there is no chance for the heat to escape upwardly through the box H.

Another advantage peculiar to my arrangement is, that although the reservoir is comparatively low down and readily accessible, yet there is no undue lengthening of the stove, while at the same time the exit Y is in line with the top plate 0.

Whenever it is desired to remove the reservoir, either for inspection or repair, the lids I J are opened, as seen in Fig. 4, after which the receptacle K can be readily lifted out of the box H.

What we claim as new, and desire to secure by Letters Patent, is-- 1. In combination with the reservoir K, located partly above and partly below the top plate (3 of a cook-stove, we claim thebox H, fiues P P Q q, passages X X, chamber U, exit Y, and extended flue-strips M M, the latter being curved, respectively, at m m, to fit the concaved front Z of said reservoir, as and for the purpose specified.

2. We claim the flanges b b and wings W W, when located as described, so asto form, in conjunction with the reservoir K, the rear upper portions of diving-fines P P, when. the dampers V V are elevated, as set forth.

3. In combination with the reservoir K of a cook-stove, we claim the flues P P Q q, passages X X', chamber U, and extended fluestrips M N, the latter being curved, respectively, at m m, as and for the purposes set forth.

4. We claim the central ascending flue Q,

formed, as described, by the combination of the concave frontZof the reservoir, flue-strips M N, plates E and q, in combination with flue U and exit-pipe T, placed behind the reservoir, substantially as and for the purposes specified.

J. B. CROWLEY. ADDIS E. CHAMBERLAIN. Witnesses:

D. P. KENNEDY,

CHARLES H. AVERY. 

